title: Baron von Pirquet: the aristocrat who discovered and defined allergy.
mesh_terms: D000486:Allergy and Immunology / Q000266:history*; D001317:Austria; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D006967:Hypersensitivity / Q000266:history; D010372:Pediatrics / Q000266:history; D014481:United States